SOLUTION: Melissa has twice as many pencils as Elle. The difference in pencils is 15. How many pencils does each of the girls have?

Question 821009: Melissa has twice as many pencils as Elle. The difference in pencils is 15. How many pencils does each of the girls have?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Melissa has twice as many pencils as Elle. The difference in pencils is 15. How many pencils does each of the girls have?
------------------------------
Equations:
m = 2e
m-e = 15
----------
Substitute for "m" and solve for "e"::
2e-e = 15
e = 15 (Elle has 15 pencils)
----
Solve for "m":
m = 2e
m = 30 (Melissa has 30 pencils)
------------------------------------
Cheers,
Stan H.
==========================

RELATED QUESTIONS
charlotte has 3 times as many pencils in her schoolbox as Rebecca. Together they have a... (answered by checkley71)

Alfred has 9 pencils and pens. He has twice as many pencils than pens. How many does he... (answered by tiffany222)

Peyton has 6 times as many pencils as paint brushes. He has a total of 63 pencils and... (answered by drk)

Your teacher gives out 4 pencils to each student. The class has one third more boys than... (answered by josgarithmetic,MathTherapy)

Andrew has pencils and erasers. The ratio of the number of his pencils to the number of... (answered by amarjeeth123,josgarithmetic)

Peter has 30 pencils and Tony has 14 .how many pencils has Tony give Peter so that Peter... (answered by ankor@dixie-net.com)

peter has 30 pencils and tony has 141 pencils, how many pencils must tony give peter so (answered by josgarithmetic)

there are 15 pens and pencils in a jar. if there are 7 more pencils than pens, how many... (answered by fractalier)

This tells you how dumb I am: My son has a math problem...He is in 4th grade. If says... (answered by mananth)